Many moons ago, I had a Volvo with a noisy water pump. Being short of cash at the time, I postpone the repair to whenever it got worst or spring arrived.
Not a drop of coolant, the noise did not get any louder for months months.
This was until I got that noise coming from up front and the alternator light came on.
When I opened the hood, I discovered a big hole in the radiator, a cracked timing chain cover, a few dented pulleys, a missing fan belt and some other collateral damages a failed water pump bearing did. The water pump casing simply disintegrated, distributing broken part all over.

Your pump can probably last 'till spring, or probably not.
Good luck